Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 1188 250 21% 0.01 290 185 64% 6.1
10 Kinds of People 2352 496 21% 0.01 425 281 66% 5.4
2048 2452 1242 51% 0.00 1240 1074 87% 2.0
3D Printer 89 22 25% 0.00 30 19 63% 8.1
3-Sided Dice 536 39 7% 0.00 103 33 32% 8.7
4 thought 1967 693 35% 0.00 701 585 83% 2.7
A1 Paper 1412 428 30% 0.00 431 334 77% 3.8
Aaah! 8366 4112 49% 0.00 3476 3248 93% 1.5
ABC 603 318 53% 0.00 338 302 89% 1.8
A+B Problem 1560 180 12% 0.06 263 100 38% 8.3
Absurdistan Roads II 345 139 40% 0.00 123 84 68% 6.3
Absurdistan Roads III 796 210 26% 0.04 195 142 73% 5.8
A Classy Problem 1998 576 29% 0.02 525 425 81% 3.8
ACM Contest Scoring 2021 1245 62% 0.00 1122 1062 95% 1.4
Adding Words 2420 481 20% 0.00 584 405 69% 4.5
A Different List Game 3291 245 7% 0.00 373 64 17% 9.1
A Different Problem 9681 4000 41% 0.00 3714 3217 87% 2.0
Adjoin the Networks 656 198 30% 0.00 176 129 73% 6.1
Administrative Difficulties 318 75 24% 0.05 88 59 67% 5.5
Adventures in Moving -- Part IV 396 126 32% 0.00 121 103 85% 4.7
A Favourable Ending 243 41 17% 0.01 59 35 59% 4.9
A Feast For Cats 501 167 33% 0.56 133 108 81% 4.7
Air Conditioned Minions 1445 391 27% 0.00 439 319 73% 4.2
Airline Hub 876 167 19% 0.01 175 104 59% 6.0
Airport Logistics 29 6 21% 0.00 9 6 67% 7.2
Airports 85 30 35% 0.23 25 19 76% 6.1
Akcija 1012 466 46% 0.01 433 378 87% 2.1
Aladin 579 48 8% 0.17 82 13 16% 8.9
Alchemy 27 7 26% 0.03 14 7 50% 7.1
Alea iacta est 21 11 52% 0.47 10 10 100% 4.6
Alien Numbers 757 393 52% 0.00 381 351 92% 1.8
A List Game 2634 756 29% 0.00 731 604 83% 3.2
All about that base 1479 527 36% 0.00 581 476 82% 2.9
All Different Directions 215 109 51% 0.00 113 98 87% 3.1
Allergy Test 56 9 16% 0.05 17 8 47% 7.6
All Friends 405 75 19% 0.01 60 36 60% 8.4
All Just A Dream 481 104 22% 0.19 84 58 69% 6.6
All Pairs Shortest Path 1951 358 18% 0.04 260 166 64% 6.6
Almost Perfect 1508 355 24% 0.00 393 301 77% 3.3
Almost Union-Find 2490 303 12% 0.03 405 175 43% 7.9
Alphabet Spam 2213 1440 65% 0.00 927 889 96% 1.4
Alternative Bracket Notation 135 58 43% 0.00 62 52 84% 6.1
Amalgamated Artichokes 1953 862 44% 0.01 768 677 88% 2.3
Amanda Lounges 637 135 21% 0.07 149 104 70% 6.4
Amazing Race 181 48 27% 0.54 51 37 73% 6.2
Ambiguous Result 89 26 29% 0.04 35 25 71% 6.8
Anagram Counting 693 292 42% 0.00 297 244 82% 2.9
Andrew the Ant 32 9 28% 0.12 12 9 75% 6.3
Androids 185 59 32% 0.09 66 43 65% 6.0
A New Alphabet 3529 1620 46% 0.00 1595 1485 93% 1.5
Animal Classification 859 158 18% 0.04 175 111 63% 6.8
An Industrial Spy 597 329 55% 0.02 248 218 88% 3.2
Another Brick in the Wall 657 344 52% 0.00 350 309 88% 2.2
Another Candies 2851 774 27% 0.00 812 658 81% 2.8
Another Dice Game 54 38 70% 0.00 34 32 94% 3.7
Anthony and Cora 161 37 23% 0.01 60 34 57% 4.3
Antiarithmetic? 472 99 21% 0.18 137 81 59% 6.6
Ants 908 352 39% 0.01 310 259 84% 2.9
Apaxiaaaaaaaaaaaans! 2685 1738 65% 0.00 1615 1541 95% 1.3
Apparatus 441 102 23% 0.01 81 60 74% 5.5
Apples, Cherries, and Mangos 209 65 31% 0.02 59 47 80% 6.0
Aquarium Tank 184 53 29% 0.00 54 41 76% 4.7
Aqueduct Construction 48 10 21% 0.01 13 10 77% 7.1
Arable Area 158 30 19% 0.08 36 20 56% 8.6
A Rational Sequence 474 193 41% 0.00 190 160 84% 3.7
A Rational Sequence 2 240 184 77% 0.00 185 180 97% 1.5
Arbitrage? 339 68 20% 0.05 54 40 74% 6.5
Arcade! 684 111 16% 0.01 113 79 70% 5.5
Arctic Network 659 245 37% 0.02 181 157 87% 3.8
A Real Challenge 1905 921 48% 0.00 897 840 94% 1.5
Area of Effect 78 8 10% 4.74 13 6 46% 7.8
Arithmetic 342 80 23% 0.01 91 63 69% 4.3
Army Strength (Easy) 1226 643 52% 0.00 558 507 91% 1.9
Army Strength (Hard) 1435 686 48% 0.01 489 429 88% 2.5
Around and Around We Go 7 1 14% 0.00 3 1 33% 8.7
Around the Track 158 25 16% 0.00 35 17 49% 8.4
Arranging Hat 81 39 48% 0.10 37 32 86% 4.8
Artur 134 22 16% 0.17 27 17 63% 6.3
Artwork 348 111 32% 0.07 126 76 60% 5.9
A Safe Bet 125 43 34% 0.29 35 30 86% 4.9
ASCII Figure Rotation 642 177 28% 0.00 199 161 81% 4.2
As Easy as CAB 105 23 22% 0.00 30 20 67% 6.9
Aspen Avenue 583 221 38% 0.01 132 98 74% 5.8
Assembly Line 23 10 43% 0.68 11 8 73% 6.2
Assigning Workstations 575 193 34% 0.12 196 155 79% 4.6
Association for Computing Machinery 960 378 39% 0.00 367 318 87% 2.0
Association for Control Over Minds 572 199 35% 0.08 191 163 85% 3.6
Association for Convex Main Office 332 84 25% 0.08 82 67 82% 4.7
Association for Cool Machineries (Part 1) 432 87 20% 0.04 116 75 65% 6.4
Association for Cool Machineries (Part 2) 26 17 65% 0.00 17 15 88% 4.2
Association for the Country of Mububa 945 214 23% 0.00 245 161 66% 5.6
Association of Camera Makers 104 4 4% 10.56 7 4 57% 8.5
Association of Cats and Magical Lights 966 215 22% 0.23 185 145 78% 4.8
Association of Computer Maintenance 638 81 13% 0.04 69 41 59% 7.2
Asteroid Rangers 57 28 49% 0.10 19 18 95% 4.8
Asteroids 363 60 17% 0.00 46 37 80% 5.6
A Towering Problem 581 321 55% 0.00 322 289 90% 2.0
Automatic Trading 225 60 27% 0.05 71 48 68% 5.0
Average Speed 124 38 31% 0.00 36 31 86% 3.4
A Vicious Pikeman (Easy) 752 210 28% 0.00 171 143 84% 3.8